Antifriction device for angle-iron legs.



C. L. PLUNKETT.

ANTIFRICTION DEVICE FOR ANGLE IRON LEGS.

APPLICATION FILED FEB. 17. 1914.

1,1LK65'K Patented Oct. 19, 1915.

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' min m it o lllit liftallhm GHARLES In LPEIUNKETT, 0F BIELGG'KLEZ'N, YUILK, ASSIGNOR OF ONE-HALF T0 REBEL EItlG-LAINDER, 01: NEW 'SZGRK, ll'. Y.

ANTIFTRIOTION DEVICE FOR AN'ErLE-IRON LEGS.

To all whom it may concern:

Be it known that 1., CHARLES L. PLUM;- urn a citizen of the United States, residing at-ldrooklyn, in the county of Kings and State of New York have invented certain new and useful Improvements in Antifriction Devices for Angle-Iron Legs, of which the following is a specification.

This invention relates to improvements in metal furniture having metal legs particularly to that type thereof known as metal couch beds and especially to that form of structure in which the legs are made of angle iron, although the present invention may be useful with other forms of metal legs, the object of the invention being to provide the metal legs of such a structure with improved means for facilitating the movement of the structure on the floor and obviate the use of casters which not only frequently mar the floor but are expensive and also dif ficult to attach and maintain in place.

It has cost couch bed manufacturers many thousands of dollars a year to replace casters which become broken or lost during shipment of the article to which they were at tached, and in the past many unsuccessful experiments costing large sums of money have been made to provide a suitable way of securing casters to metal legs of couch beds, especially to those forms of couch beds which have angle-iron legs.

The present improvement therefore has to do with the provision of improved means comprising what may be termed an anti-fric tion device particularly adapted for use with metal legs.

In the drawings accompanying and forming part of this specification, Figure 1 is-a view of so much of a sliding couch is necessary to illustrate this improved attach ment secured thereto; Fig. :2 is a detail enlar ed ers ective View of one end of a le b b having this improved attachment secured thereto; Fig. 3 is a detail view of this imroved device detached from the leg; and ldig. 4' is a sectional view thereof taken in line a-a, Fig. 3.

Similar characters of reference indicate corresponding parts throughout the several figures of the drawings.

lln the present improvement the sliding couch 2 is made in the usual way and comprises a main section 3 and a sliding section a each having its usual complement of four Specification of Letters Patent.

Patented (lot. 119, ft il-ti,

Application filed February 17, 1914. Serial No. 815x146.

legs 5, each shown herein of angle-iron. Se-

cured to the lower end of each leg in some suitable way, preferably by riveting is this lmproved anti-friction device 6 which c0nsists, when applied to an angle-iron leg, of a supporting or bottom part 7 preferably sector-shaped and having stamped out there-- from a continuously curved convex portion 8 of smooth metal which convex face pro- 'jects below the part 7 and is in position to engage the floor or other supporting surface for the bed. The supporting part 7 of this improved dome of silence is provided at its ends with a pair of upturned ears or lugs 9 adapted to overlap and be riveted by rivets 10 to the two sides 11 and 152 of the angle-iron leg so that the supporting part 7 underlaps the lower edges 13 of the angle iron leg. The upturned ears or lugs 9 are integral with the bottom 7 and of pointed form and in the form shown. the bottom part 7 has a curved edge 14: at one side which extends substantially to the vertical free edges 15 of the legs and the device when attached. to an angle-iron leg has a somewhat triangular form so that it presents a neat appearance without any obstructions to in terfere with the proper sliding ofthe article upon the lioor. In short, the device comprises a bottom portion having integrally bent-up lugs or cars for attachment to the angle-iron legs at opposite points and which. bottom portion is provided with a continuously curved convex part projecting below the same and adapted to engage the floor or other supporting surface. I

By means of this improvement l have found it practicable to entirely do away with casters and all the disadvantages there of which are considerable without in any way interfering with the easy manipulation of even the heaviest form of couch bed.

From the foregoing it will be observed that when this improved anti-friction device is applied to angle-iron legs the structure is so formed that the forward curved edge thereof spans the space between the free edges of the legs so that the upstanding ears are nearer each other at the corner of t 1e angle-iron legs than they are at the free edges thereof.

I claim as my invention:

1. A dome of silence having upstanding ears adapted to be attached by riveting.

2. A structure of the class described. having' metal legs each provided with a slidable floor contact member comprising a convex portion of smooth metal, and rigid upturned means lapping said legs and riveted thereto.

3. A structure of the class described having angle iron legs each provided with a slidable floor contact member comprising a sector-sh ped bottom portion having a convex portion of smooth metal and also having rigid upturned ears lapping and riveted to the sides of the legs.

4. A stru9ture of the class described hav-- ing metal legs each provided with a slidable floor contact member comprising a' bottom portion having integrally upturned ears lapping and rigidly secured to the sides of the leg by laterally extending means, and below such bottom portion a convex portion of smooth metal.

5. A structure of the classdescribed having angle iron metal legs each provided with a slidable floor contact member comprising a sector-shaped bottom portion having integrally upturned ears lapping and rigidly secured to the sides of the leg and below such bottom portion a convex portion of smooth metal.

6. A structure of the class described having metal legs each provided with a slidable floor contact member comprising a bottom portion extending across and in engagement with the lower edges of the leg and having integrally upturned ears lapping and. permanently secured to the sides of the leg and below said bottom portion a round convex portion ofsrnooth gnetal. I

7. A structure o f the class describedhaving angle iron metal legs each provided with xa-slidable floor contact member comprising a sector-shaped bottom portion extending across and in engagement with the lower edges of the le and having'a pair of wide integrally up turned ears lapping and permanently secured to the sides of the leg and below said bottom portion a round convex portion of smooth metal.

8. A structure of the class described having angle iron metal legs and a dome of silence for each of said legs and consisting of a bottom portion having integral upstanding ears spaced farther apart at one point than at another and lapping and rigidly attached to said legs, and said bottom having a round contact projecting portion.

9. A dome of silence for the metal legs of structures of the class described consistin of a convex portion of smooth metal and rigid upturned means having openings therethrough for the reception of rivets whereby the structure is riveted to the leg.

10. A dome of silence for the metal legs of structures of the class described consisting of a bottom portion having a convex projecting portion extending therefrom and rigid upstanding ears for lapping attachment to the sides of metal legs, such upstanding ears having openings therethrough for the reception of rivets whereby the device may be riveted to its leg.

11. Adome of silence for the metal legs of structures of the class described consisting of a bottom portion having a convex projecting portion extending therefrom, and integral upstanding ears for lapping and rigid attachment by laterally extending means, to the sidesof metal legs.

12. A dome of silenre for angle-iron metal legs of 'structuresof the class described consisting of a fiat'bottom portion having a relatively long curved forward edge and a relatively short rear edge and a convex portion projecting below said bottom portion, and integral upstanding ears for lapping and rigid attachment to the sides of angle iron metal legs.

13. A dome of silence for angle-ir0n legs of structures of the class described consisting of a flat bottom portion having projecting therefrom a round convex portion and provided with a pair of wide integral upstanding ears for lapping and permanent attachment to said legs. said bottom portion having a curved forward edge, and I said upstanding ears having one pair of its edges in closer relationship than its other pair of edges.

14. A dome of silence for metal legs of structures of the class described consisting of a bottom portion having a pair of integral upstanding ears spaced farther apart at one point than at another and each substantially as wide at its base as said bottom portion for lapping and rigid attachment to said metal legs, and said bottom portion having a round contact projecting portion.

CHARLES L. PLUNKETT.

Witnesses F. E. Boyce, WALTER L. BAKELAR. 

